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Series 1 - The Snot Sea Cucumber
Animated deep-sea adventures with Captain Barnacles and his explorers. A slimy, slippery snot sea cucumber gets loose onboard the Octopod.
Source: CBeebies
Most recent episodes of Octonauts
Octonauts
Series 1 - The Great Algae Escape
Animated deep sea adventures with Captain Barnacles and his explorers. The crew must catch a runaway Octopod after it is hijacked by a group of crustaceans.
01-01-2026
CBeebies
Octonauts
Series 1 - The Orcas
Animated deep sea adventures with Captain Barnacles and his band of explorers. An orca whale is stranded on a beach. The Octonauts come to the rescue.
31-12-2025
CBeebies
Octonauts
Series 1 - The Giant Squid
Animated deep sea adventures with Captain Barnacles and his band of explorers. The Octonauts set out to find and photograph the elusive giant squid.
30-12-2025
CBeebies
Octonauts
Series 1 - The Flying Fish
Animated deep sea adventures with Captain Barnacles and his band of explorers. A school of flying fish accidentally make off with Professor Inkling's rare book.
29-12-2025
CBeebies
Octonauts
Series 1 - The Great Penguin Race
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts cheer Peso on as he goes home to compete in an annual tournament.
29-12-2025
CBeebies
Octonauts
Series 1 - The Sardine School
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts must work together as a team to help a lost sardine find her school.
28-12-2025
CBeebies
Octonauts
Series 1 - The Kelp Forest Rescue
Animated deep sea adventures with Captain Barnacles and his explorers. Peso's little brother Pinto comes to visit the Octonauts.
28-12-2025
CBeebies
Octonauts
Series 1 - The Enormous Elephant Seal
Animated deep-sea adventures with Captain Barnacles and his explorers. Peso and the Octonauts help an enormous elephant seal.
27-12-2025
CBeebies
Most popular episodes of Octonauts
Octonauts
Series 5: 1. Blue Fin Tuna
After an encounter with a school of migrating tuna, the Octonauts discover that one of the speedy fish, Tina, has been left behind. And she’s injured! Poor Tina has a hook ...
16-12-2025
CBeebies
Octonauts
The Over, Under Adventure
Animated deep sea adventure series. The Octonauts' mission to explore Antarctica becomes a desperate rescue as a group of sea stars and urchins are threatened by a brinicle.
15-08-2024
CBeebies
Octonauts
Series 1 - The Narwhal
Animated deep sea adventures with Captain Barnacles and his fellow explorers. While sailing the Arctic, the Octonauts' ship, the Octopod, gets trapped in the ice.
06-12-2025
CBeebies
Octonauts
Octonauts Special: The Amazon Adventure
Animated series. In this special episode, the Octonauts travel deep down the Amazon river in search of a lost city - and Kwazii's long-lost grandfather, Calico Jack!
29-10-2025
CBeebies
Octonauts
Series 1 - The Hermit Crabs
Animated deep sea adventures. When the crew can't return to base, Peso and Tweak have to help a hermit crab escape from its shell.
21-12-2025
CBeebies
Octonauts
Series 1 - The Great Penguin Race
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts cheer Peso on as he goes home to compete in an annual tournament.
29-12-2025
CBeebies
Octonauts
Specials: 3. Great Barrier Reef
The Great Barrier Reef, the world's largest structure of living organisms and 1,400 miles long, is home to the most diverse population of undersea life on the planet… and ...
26-12-2025
CBeebies